Buy cialis viagra
Posted by John
August 15, 2005, 1:30 am
[TEXT-10-15] buy cialis viagra!-Online-Approved pharmacy:yesterday, today and tomorrow
[MAP]
Ketty: March 14, 2005, 10:12 am
Rafol: March 30, 2005, 11:48 am
The buy cialis viagra 2008 too is necessary to me. How it to order?
Storm: April 9, 2005, 12:48 pm
The buy cialis viagra too is necessary to you?
People! Same very simply to find!
NIKI: April 28, 2005, 2:42 pm
A: The number of people selling these products outnumber the
Rafol: May 12, 2005, 4:06 pm
larry: May 16, 2005, 4:30 pm
Who knows where to find the buy cialis viagra in 2008?
__________________
Otec: May 23, 2005, 5:12 pm
larry: June 5, 2005, 6:30 pm
Doctor Steave: June 11, 2005, 7:06 pm
Maria: June 24, 2005, 8:24 pm
getting 7mg or 8mg. Or you might be getting a dangerously high dose
LILU: July 10, 2005, 10:00 pm
John: July 20, 2005, 11:00 pm
Help to find the buy cialis viagra, please!
Doctor Steave: August 2, 2005, 12:12 am
Q: What if I tried generic buy cialis viagra and it worked?
NIKI: August 9, 2005, 12:54 am
Cialis (tadalafil) information:
NIKI: August 15, 2005, 1:30 am
A: So-called generic buy cialis viagra pills you purchase on the internet may
The drug company Pfizer makes Viagra; Eli Lilly and Company makes Cialis. WebMD asked both companies for their comments on their drug's label change.
Erection of the penis is caused by the filling of the penis with blood. Filling occurs because the blood vessels that bring blood to the penis increase in size and deliver more blood to the penis, and, at the same time, the blood vessels that take blood away from the penis decrease in size and remove less blood from the penis.
Sexual stimulation that leads to an erection causes the production and release of nitric oxide in the penis. The nitric oxide causes an enzyme, guanylate cyclase, to produce cyclic guanosine monophosphate (cGMP). It is the cGMP that is primarily responsible for increasing and decreasing the size of the blood vessels carrying blood to and from the penis, respectively, and causing the erection. When the cGMP is destroyed by another enzyme, phosphodiesterase-5, the blood vessels return to their normal size, blood leaves the penis, and the erection ends. Tadalafil prevents phosphodiesterase-5 from destroying cGMP so that cGMP stays around longer. The persistence of cGMP leads to a more prolonged engorgement of the penis with blood.
